Get this
Mini Wireless 1080P Security Camera Motion Activated Small Indoor Outdoor Nanny Cam for Cars Home Apartment (Exclude SD Card) (Small Camera) https://www.amazon.com/dp/B08DH9H46S/ref=cm_sw_r_apan_glt_i_CQYNKBERM7CBDNJG3Z93
I got this for an entirely different reason but it records in HD, has a motion sensing setting and a setting for night vision and both at the same time. Comes with a little book that tells you the button/light combos. You need to buy an SD card tho.
Sounds like the beginning of an entry in /nosleep.
But if this is actually serious, get you a few motion activated mini cams and put them around the house. They only cost about $18/ea on amazon: